1
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

List - I List - II ($$\Delta_0$$)
A. 16 g of $$\mathrm{CH_4~(g)}$$ I. Weighs 28 g
B. 1 g of $$\mathrm{H_2~(g)}$$ II. $$60.2\times10^{23}$$ electrons
C. 1 mole of $$\mathrm{N_2~(g)}$$ III. Weighs 32 g
D. 0.5 mol of $$\mathrm{SO_2~(g)}$$ IV. Occupies 11.4 L volume of STP

Choose the correct answer from the options given below:

A
A-II, B-III, C-IV, D-I
B
A-II, B-IV, C-I, D-III
C
A-I, B-III, C-II, D-IV
D
A-II, B-IV, C-III, D-I
2
JEE Main 2023 (Online) 10th April Evening Shift
Numerical
+4
-1
Change Language

An aqueous solution of volume $$300 \mathrm{~cm}^{3}$$ contains $$0.63 \mathrm{~g}$$ of protein. The osmotic pressure of the solution at $$300 \mathrm{~K}$$ is 1.29 mbar. The molar mass of the protein is ___________ $$\mathrm{g} ~\mathrm{mol}^{-1}$$

Given : R = 0.083 L bar K$$^{-1}$$ mol$$^{-1}$$

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3
JEE Main 2023 (Online) 10th April Evening Shift
Numerical
+4
-1
Change Language

The number of molecules from the following which contain only two lone pair of electrons is ________

$$\mathrm{H}_{2} \mathrm{O}, \mathrm{N}_{2}, \mathrm{CO}, \mathrm{XeF}_{4}, \mathrm{NH}_{3}, \mathrm{NO}, \mathrm{CO}_{2}, \mathrm{~F}_{2}$$

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4
JEE Main 2023 (Online) 10th April Evening Shift
Numerical
+4
-1
Change Language

For a metal ion, the calculated magnetic moment is $$4.90 ~\mathrm{BM}$$. This metal ion has ___________ number of unpaired electrons.

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